Activation-induced cytidine deaminase (AID) is a 24 kDa, RNA-editing protein that is necessary for the initiation of both somatic hypermutation (SHM) and class switch recombination (CSR) of the Ig gene through the production of U:G mismatches in DNA, and is primarily found in activated B cells. AID expression has also been observed in several varying types of B cell lymphomas such as; Burkitt’s lymphoma, Hodgkin’s lymphoma, hairy cell lymphoma, follicular lymphoma, mantle cell lymphoma, mucosa-associated lymphoid tissue lymphoma, and mediastinal B cell lymphoma. Mutations in AID expression are causal to autosomal recessive hyper-IgM immunodeficiency syndrome type 2 (HIGM2), which is characterized by serum containing IgM but lacking IgG, IgA and IgE, which leads to severe susceptibility to bacterial infections.，官网链接：https://www.sigmaaldrich.cn/product/mm/mabf63 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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